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Air conditioner defrosting control method and system and air conditioner

A control method and control system technology, applied in heating and ventilation control systems, heating and ventilation safety systems, mechanical equipment, etc., can solve problems such as not being able to achieve the best energy efficiency ratio

Inactive Publication Date: 2021-05-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this scheme, bypass defrosting and reversing defrosting are independent of each other, and only one defrosting method will be selected according to system judgment conditions. can not achieve the best energy efficiency ratio

Method used

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  • Air conditioner defrosting control method and system and air conditioner
  • Air conditioner defrosting control method and system and air conditioner
  • Air conditioner defrosting control method and system and air conditioner

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Embodiment Construction

[0047] see in conjunction Figure 1 to Figure 6 As shown, according to the embodiment of the present application, the air conditioner includes a bypass defrosting pipeline 6, and the bypass defrosting pipeline 6 is arranged between the compressor 1 and the outdoor heat exchanger 3 of the air conditioner, and is used to connect the compressor 1. The discharged high-pressure gas is introduced into the outdoor heat exchanger 3 to melt the frost layer on the outdoor heat exchanger 3. The defrosting control method of the air conditioner includes: judging whether bypass defrosting is required; when bypass defrosting is required, controlling the air conditioner The air conditioner enters bypass defrosting; in the process of bypass defrosting, it is judged whether the reversing defrosting condition is met; when the reversing defrosting condition is met, the air conditioner is switched to reversing defrosting.

[0048] When using the air conditioner defrosting control method of this ap...

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PUM

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Abstract

The invention provides an air conditioner defrosting control method and system and an air conditioner. The air conditioner defrosting control method comprises the steps that whether bypass defrosting needs to be conducted or not is judged; when bypass defrosting needs to be carried out, the air conditioner is controlled to enter bypass defrosting; in the bypass defrosting process, whether the reversing defrosting condition is met or not is judged; and when the reversing defrosting condition is met, the air conditioner is switched to reversing defrosting. According to the air conditioner defrosting control method provided by the invention, the bypass defrosting and the reversing defrosting can be organically combined, the advantages of the bypass defrosting and the reversing defrosting are brought into full play, and the energy efficiency ratio of the air conditioner during defrosting operation is increased.

Description

technical field [0001] The present application relates to the technical field of air conditioning, in particular to an air conditioner defrosting control method, a control system and an air conditioner. Background technique [0002] When the outdoor temperature is low, frost will appear on the condenser and affect the performance of the air conditioner, so defrosting control is often required. However, the existing defrosting methods for air conditioners have certain disadvantages, such as bypass defrosting. In the initial stage, due to the heat storage of the compressor, the defrosting effect is better, but as the heat storage is consumed, the refrigerant continues to gather In the liquid storage tank, the input power of the compressor is continuously attenuated, and the suction superheat is always 0°C, so the discharge temperature will continue to drop with the extension of the defrosting time, which seriously affects the efficiency of subsequent defrosting. When the frost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/61F24F11/65F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F2140/20
Inventor 徐耿彬吴俊鸿田雅颂廖敏连彩云梁之琦
Owner GREE ELECTRIC APPLIANCES INC
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